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Finding the Fourth Proportional to 132,685.66, 183,109.70 and 72,258.85

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Solution

The fourth proportional to 132,685.66, 183,109.70 and 72,258.85 is: 99,719.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,685.66 : 183,109.70 = 72,258.85 : x
  2. Step 2: Convert to fraction form
    132,685.66/183,109.70 = 72,258.85/x
  3. Step 3: Cross multiply
    132,685.66x = 183,109.70 × 72,258.85
  4. Step 4: Simplify right side
    132,685.66x = 13,231,295,069.00
  5. Step 5: Solve for x
    x = 13,231,295,069.00/132,685.66
  6. Step 6: Final answer
    x = 99,719.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.